CN220842486U - V-shaped supporting leg suitable for bridge detection operation vehicle - Google Patents

Abstract

The V-shaped supporting legs are arranged in a V-shaped structure on the front side and the rear side of the chassis rotation center in a horizontal and symmetrical arrangement mode between two shafts and three shafts of an automobile chassis assembly; the landing leg that is V type structural arrangement includes with horizontal, symmetry mode fixed mounting be the preceding, the back slide that is V type structural arrangement of both sides around chassis gyration center, installs respectively in preceding, back slide and can be under the hydraulic cylinder drive of horizontal setting down the flexible landing leg of corresponding slide motion, installs the vertical landing leg at the flexible landing leg epitaxial end of level respectively to and install the locking assembly that is used for locking the corresponding hydraulic cylinder of horizontal setting on preceding, back slide respectively. The landing leg adopts the V-shaped structure, so that the frame structure is more compact, the weight is light, the stability is good, the longitudinal span is effectively increased, the whole mechanism has higher bearing capacity, and the safety of the whole vehicle during bridge detection is greatly improved.

Description

V-shaped supporting leg suitable for bridge detection operation vehicle

Technical Field

The utility model belongs to a V-shaped supporting leg structure on a bridge inspection vehicle of a special automobile, in particular to a supporting leg mechanism assembly of the bridge inspection vehicle, which can realize simplification, safety and performance and integrates cost reduction under the condition of normal operation of the whole vehicle.

Background

The landing leg structure of the bridge detection vehicle in the prior art is shown in fig. 1, one landing leg structure is arranged on the front side of the rotary support, the other landing leg structure is arranged on the rear side of the rotary support, two landing legs are arranged in a horizontal state, during operation, a hydraulic system supplies oil, the horizontal telescopic landing leg is controlled to extend out in a horizontal state laterally through the extension of a hydraulic cylinder, the vertical landing leg at the extending end of the horizontal telescopic landing leg is driven to extend downwards to be supported on the ground plane of a detected bridge through a vertical hydraulic cylinder after reaching a working position, and other subsequent operations of the bridge detection vehicle can be carried out after the action is completed. When the bridge inspection vehicle stops working, the two supporting legs retract, and the bridge inspection vehicle can normally walk. Under the same load, the materials are heavy, the hydraulic system is complex, and when the hydraulic system works, the hydraulic system is extremely easy to operate improperly, so that potential safety hazards occur.

Disclosure of Invention

The utility model aims at overcoming the defects in the prior art, and designs the V-shaped supporting leg structure which ensures the safety of the whole vehicle, has light weight, large longitudinal span and compact structure according to market conditions, structural analysis, stress conditions and the like.

The aim of the utility model can be achieved by the following technical measures:

The V-shaped supporting leg suitable for the bridge detection operation vehicle comprises an automobile chassis assembly, wherein supporting legs which are arranged in a V-shaped structure are arranged on the front side and the rear side of a chassis rotation center in a horizontal and symmetrical arrangement mode between two shafts and three shafts of the automobile chassis assembly; the landing leg that is V type structural arrangement includes with horizontal, symmetry mode fixed mounting be the preceding, the back slide that is V type structural arrangement of both sides around chassis gyration center, installs respectively in preceding, back slide and can be under the hydraulic cylinder drive of horizontal setting down the flexible landing leg of corresponding slide motion, installs the vertical landing leg at the flexible landing leg epitaxial end of level respectively to and install the locking assembly that is used for locking the corresponding hydraulic cylinder of horizontal setting on preceding, back slide respectively.

The included angle of the supporting legs arranged in the V-shaped structure is 45-60 degrees.

The working principle and the beneficial effects of the utility model are as follows:

The V-shaped slide ways are positioned between two shafts and three shafts of the chassis, the V-shaped slide ways are symmetrically arranged on two sides of a rotation center on the chassis, so that stress is uniform, the hydraulic cylinder controls the horizontal telescopic support legs to slide on the V-shaped slide ways, when the hydraulic system is in operation, oil is supplied, the horizontal telescopic support legs are driven to extend out to the lateral direction of the bridge inspection vehicle in a horizontal state through extending out of the horizontal hydraulic cylinder, and the hydraulic system is locked through the locking assembly after reaching the working position, so that mechanism safety during operation is ensured, and potential safety hazards caused by support leg retraction due to abnormal problems of the cylinder system are avoided. And then the vertical supporting legs are driven by the vertical hydraulic cylinders to vertically extend downwards to be supported on the ground level of the detected bridge, and other follow-up operations of the bridge inspection vehicle can be carried out after the actions are completed. The bridge inspection vehicle stops working and is used for normal walking of a road, the locking assembly is loosened, and then the hydraulic oil loop is controlled to control the horizontal hydraulic oil cylinder to retract and the vertical hydraulic oil cylinder to further drive the vertical supporting leg and the horizontal telescopic supporting leg to retract respectively. When the V-shaped supporting leg works and stretches out, a triangle is formed between the V-shaped supporting leg and the frame, under the condition that the vertical distance between the V-shaped supporting leg and the center of the frame is the same, the front-back span of the V-shaped supporting leg is increased, under the same working load, structural materials can be greatly optimized, the shape selection of an oil cylinder is further reduced, the cost output is greatly reduced, and extremely high stability and safety are guaranteed.

Drawings

Fig. 1 is a prior art leg arrangement (top view).

Fig. 2 is a schematic diagram of the structure of the present invention (top view).

Fig. 3 is a schematic diagram of the V-shaped leg structure of fig. 2.

In the figure: 1. the automobile chassis assembly, 2, the horizontal telescopic supporting leg, 3, the hydraulic cylinder, 4, the locking assembly, 5 and the vertical supporting leg.

Detailed Description

The utility model will be further described with reference to the following examples (drawings):

As shown in fig. 2 and 3, the V-shaped support leg suitable for the bridge detection operation vehicle comprises an automobile chassis assembly 1, wherein the support legs which are arranged in a V-shaped structure are arranged on the front side and the rear side of a chassis rotation center in a horizontal and symmetrical arrangement mode between two shafts and three shafts of the automobile chassis assembly; the landing leg in V-shaped structural arrangement comprises a front slide rail and a rear slide rail which are fixedly arranged on the front side and the rear side of a chassis rotation center in a horizontal and symmetrical mode and in V-shaped structural arrangement, a horizontal telescopic landing leg 2 which is respectively arranged in the front slide rail and the rear slide rail and can do telescopic movement along the corresponding slide rail under the driving of a hydraulic cylinder 3 which is horizontally arranged, a vertical landing leg which is respectively arranged at the extension end of the horizontal telescopic landing leg, and a locking assembly 4 which is respectively arranged on the front slide rail and the rear slide rail and is used for locking the corresponding hydraulic cylinder which is horizontally arranged.

The angle between the legs arranged in the V-shaped configuration in the present utility model is preferably 54 °.

According to the utility model, the V-shaped supporting legs symmetrically arranged on the front side and the rear side in the rotation of the automobile chassis provide a supporting effect for the bridge inspection vehicle during operation, the horizontally arranged hydraulic oil cylinder drives the horizontally telescopic supporting legs to act, and the locking assembly ensures that the horizontally telescopic supporting legs are limited when the hydraulic oil cylinder stretches out. The V-shaped supporting leg extends out by the same distance relative to the center of the frame, and the front-back span of the V-shaped supporting leg is large. The overall structure is simple, the weight is light, and the implementation is convenient and quick.

More specifically, the horizontal telescopic action of the V-shaped leg structure of the present utility model is mainly controlled by the horizontally disposed hydraulic cylinder 3. When the bridge inspection vehicle walks on a normal road, the hydraulic oil 3 does not act; when the bridge inspection vehicle is in bridge-loading operation, after other preparation actions of the vehicle are completed, oil supply of an oil way of the hydraulic cylinder 3 is controlled, the hydraulic cylinder stretches out to drive the horizontal telescopic supporting leg 2 to stretch out, after the hydraulic cylinder reaches a working position, the locking assembly 4 is operated to lock the hydraulic cylinder 3, at the moment, the vertical supporting leg 5 stretches out and supports on the ground level of the detected bridge vertically downwards under the driving of the vertical hydraulic cylinder, and other subsequent operations of the inspection vehicle can be carried out after the actions are completed; after the bridge inspection vehicle finishes the operation, other related operations are finished, the vertical supporting legs 5 are driven to retract through the vertical hydraulic oil cylinders, then the locking assembly 4 is operated to unlock, then hydraulic oil return is controlled, and the hydraulic oil cylinders 3 retract to drive the horizontal telescopic supporting legs to retract along the front slide ways and the rear slide ways which are arranged in a V-shaped structure. The whole operation is completed.

Claims (2)

1. V-shaped supporting leg suitable for bridge detection operation vehicle, including the vehicle chassis assembly, its characterized in that: legs which are arranged in a V-shaped structure are arranged on the front side and the rear side of the chassis rotation center in a horizontal and symmetrical mode between two shafts and three shafts of the automobile chassis assembly; the landing leg that is V type structural arrangement includes with horizontal, symmetry mode fixed mounting be the preceding, the back slide that is V type structural arrangement of both sides around chassis gyration center, installs respectively in preceding, back slide and can be under the hydraulic cylinder drive of horizontal setting down the flexible landing leg of corresponding slide motion, installs the vertical landing leg at the flexible landing leg epitaxial end of level respectively to and install the locking assembly that is used for locking corresponding tight hydraulic cylinder that the level set up on preceding, back slide respectively.

2. The V-leg for use in a bridge inspection vehicle of claim 1 wherein: the included angle of the supporting legs arranged in the V-shaped structure is 45-60 degrees.